Roller-bearing.



J. RAMSLIE. ROLLER BEARING.

- APPLICATION FILED APR.14, 190a.

Patented Mar. 15, 1910.

N VE N 70H u o/n iamatlz'e B y M A TTOHNE Y S barren srAr s raraar carton.

JOHN RAMSLIE, OF SAN MATEO, CALIFORNIA. I

' ROLLER-BEARING.

ceases.

Specification of Letters Patent.

Patented Mar. 15, rain.

Application filed April 14, 1908. Serial No. 426,983.

areprovided two bearing members or racerings separated by a plurality of rotatable load-supporting members, and in which said load-supporting members are spaced apart by intermediate rotatable spacing members.

The special object of the invention is to provide means whereby said rotatable spacing members will have rolling rather than sliding engagement with every part wlth which they connect.

A further object of the invention is to provide a bearing in which a plurality of rows of load-supporting balls are spaced and held uniform in respect to each other by a series of spacing rollers.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both the figures, and in which Figure 1 is a longitudinal section through a bearing constructed in accordance with my invention; and Fig. 2 is an end view thereof, a portion being shownin section on the line 2-2 of Fig. 1.

In the specific form of my invention illustrated in the accompanying drawings, I provide. two bearing members or race-rings and 11, one of which is adapted to be secured to any suitable rotatable element, as, for instance, the shaft 12, and the other of which is adapted to be secured to any suitable stationary support, as, for instance, the base 13. In the outer surface of the bearing member or race-ring 10, I provide two annular grooves 1A and 15, and the inner surface of the outer bearing member orracering 11 is, provided with two annular grooves 16 and 17 disposed in the same transverse plane as the two grooves 14 and 15. In the two pairs of opposed grooves I provide two annular rows of load-supporting balls 18 and 19, which permit of a free rotation of the bearing member 10 in respect to the bearing member 11. For spacing the balls apart and preventing two adjacent balls in the same row from coming into enga ement, I provide a plurality of spacing rol ers 20, each of a length somewhat greater than twice the diameter of the balls, plus the intervening space, so that a single row;

of spacing rollers serves for both annular rows of balls. The only parts which the balls engage with are the bearing members and the spacing rollers, andall of these parts have such relative movement in respect to each other that the balls engage with boththe bearing members and also with the rollers by rolling rather than sliding contact. The special object of my inventions is to hold the spacing rollers in their proper position, so that they will engage with the bearing members or other parts, by rolling rather than sliding engagement. Toaccomplish this object, I provide one of the bearing members with flanges extending beyond the ends of the rollers and curved laterally to engage with each roller at a point diametrically opposite from the bearing member carrying said flanges. The rollers are preferably provided with rounded heads 21, and intermediate each head and the body of the roller, I preferably provide a groove 22.

As illustrated, the inner bearing member 10'is provided with two annular plates 23 and 24 rigidly secured thereto, and each plate is provided with a flange 25 extending out around the adjacent roller ends and into engagement with the outer surface of the heads. To eliminate undue pressure of the spacing rollers against the load-supporting balls, I also provide two annular members or race-rings 26 and 27, dis osed within the annular row of rollers an engaging within the grooves 22 adjacent the ends of said rollers. As all of the rollers rotate in the same direction and as the rings 26 and 27 en age solely with said rollers, said rings wi lbe moved by their engagement with the rollers and there will be rolling rather than sliding contact. As the rollers are rotated in the reverse direction to the balls, their outer surfaces will be traveling in the same direction as is the outer surface of the bear- 1 ing member 10, and, therefore, the outer surfaceswill have rolling engagement with the inner surfaces of the flanges 25 carried by said inner bearing member 10. Thus, it will be noted that each and every member, element, or part of the structure, which has contact with any other member, element or contact, and, therefore, the friction will be reduced to the minimum and the least ossible amount of energy will be waste in transmission. 7

Having thus described my invention I claim as new and desire to secure by Letters Patent:

1. In combination, two annular concentric bearing members, each having a plurality of grooves in the opposed faces, a plurality of rows of load-supporting balls in-' terposed in said grooves, a plurality of spacing rollers, each extendin across all of the rows of load-supporting alls and havin ends of substantlally spherical form an extendin beyond said load-supporting balls, cofiars carried by one of said bearing members and terminating in flanges extendin beyond the ends of the spacing rollers an having engagement with the spherical portions thereof upon their further side, and rings within the annular row of spacing rollers and having engagement solely therewith upon the sides thereof opposite to said flanges, said collars serving to resist endwise movement of said spacing members and also serving to prevent radial movement thereof in one direction.

2. In a ball-bearing, the combination of a plurality of annular rows of bearing balls, roller separators provided with reduced end portions, rings to engage the ends of said roller separators, and means to maintain said bearing balls and roller separators in operative relation.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

JOHN RAMSLIE.

Witnesses:

WILLIAM H. GRIMMELMAN, C.A.Rn'rnnnronn. 

